The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Towards precision charm physics with a mixed action

Aug 10, 2022, 3:40 PM
20m
CP1-HSZ/Ground-0.002 - HS4 (CP1-HSZ)

CP1-HSZ/Ground-0.002 - HS4

CP1-HSZ

50
Oral Presentation Standard Model Parameters

Speaker

Alessandro Conigli (IFT UAM-CSIC)

Description

We report on our first set of results for charm physics, using a mixed-action setup with maximally twisted valence fermions on CLS $N_f = 2+1$ ensembles. This setup avoids the need of improvement coefficients to subtract ${\rm O}(am_c)$ effects. The charm quark mass, $D$ and $D_s$ decay constants, and some charmonium observables are computed on a subset of CLS ensembles, which allows to take the continuum limit and extrapolate to the physical pion mass, and assess the scaling properties. Special attention is paid to the implementation of techniques to deal with systematic uncertainties. Our results show excellent prospects for high-precision computations on the full set of ensembles.

Primary author

Alessandro Conigli (IFT UAM-CSIC)

Co-authors

Prof. Carlos Pena (IFT UAM-CSIC) Prof. Gregorio Herdoiza (IFT UAM-CSIC) Dr Javier Ugarrio (IFT UAM-CSIC) Dr Alejandro Saez (IFT UAM-CSIC) Prof. Frison Julien (DESY- Zeuthen)